EVN User Experiment Pipeline Feedback
Pipeline feedback for experiment EM053A.
If you have any comments on this experiment please email
the
address below.
A detailed
description of the pipeline output is available.
Last updated: Thu Feb 26 14:15:39 CET 2004
bignall@jive.nl
|
General Comments.
(
Brief data summary
and
scan listing
)
This is an EVN spectral line experiment at 5cm observed on 5 June 2003. The data were correlated in two passes, each with a different phase center for the target source. Only the first pass has been pipelined since all other correlation parameters are identical: 1024 spectral channels, dual polarization, no cross-pols. 7 stations participated: Jb, Cm, Ef, On, Mc, Tr, Hh. Mc did not produce any fringes at 5cm in this session.
The EVN Reliability Indicator (ERI) for this experiment was ERI=ERI*=0.68 (Jb=0.99, Cm=0.98, Ef=0.98, On=0.95, Mc=0, Tr=1.0, Hh=0.98).
Plots of the autocorrelations
.
Comments.
Some RFI is evident - most severe at Cm.
Plots of the uncalibrated amplitude and phase against time
.
Comments.
Plots of the uncalibrated amplitude and phase against frequency
channel
.
Comments.
Some RFI in cross-correlations
The uncalibrated amplitude and phase of the crosshand
correlations against frequency channel
(not available)
.
Comments.
TSYS against time
.
Comments.
No Tsys for Cm - nominal value used. Jb Tsys shows inconsistent behaviour between polarizations - may not be reliable.
Telescope sensitivities
from the a priori TSYS and Gain curves (the square of this
number gives the antenna noise (SEFD) in Jy - the smaller the better).
Comments.
Jb gain indicates lower sensitivity that expected from the EVN status sheet, however Tsys may be in error. On and Hh are somewhat less sensitive than expected. Tr has reduced sensitivity in LCP.
Fringe-fit phase solutions
(including Parallactic Angle correction).
Comments.
FRING failed for phase-reference source (J1825) on baselines to Hh - low S/N. Phase solutions generally appear smoothly connected.
Fringe-fit delay solutions
.
Comments.
Largest corrections are of order 10ns.
Fringe-fit rate solutions
.
Comments.
All within a few mHz.
Telescope bandpasses
.
Comments.
Calibrated amplitude and phase against time
(a priori amplitude calibration and fringe-fit solutions applied).
Comments.
Calibrated amplitude and phase against frequency channel
.
Comments.
Naturally weighted dirty map produced before self-cal of:
J2101
.
J1642
.
J2253
.
J1751
.
J1825
.
Comments.
Uniformly weighted dirty map produced before self-cal of:
J2101
.
J1642
.
J2253
.
J1751
.
J1825
.
Comments.
Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J2101.
J1642.
J2253.
J1751.
J1825.
Comments.
Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J2101:
postscript
, or
text file
.
J1642:
postscript
, or
text file
.
J2253:
postscript
, or
text file
.
J1751:
postscript
, or
text file
.
J1825:
postscript
, or
text file
.
Comments.
Telescope sensitivities
(the total AMP gain applied during
both a priori and self calibration; the square of this number gives the antenna
noise (SEFD) in Jy).
Comments.
Residual closure phase (visibility closure phase with model closure phase subtracted) for:
J2101
.
J1642
.
J2253
.
J1751
.
J1825
.
Comments.
Calibrated visibilities and the source model of:
J2101
.
J1642
.
J2253
.
J1751
.
J1825
.
Comments.
Calibrated visibilities against u,v distance for:
J2101.
postscript
, or
png (smaller)
J1642.
postscript
, or
png (smaller)
J2253.
postscript
, or
png (smaller)
J1751.
postscript
, or
png (smaller)
J1825.
postscript
, or
png (smaller)
Comments.
u,v coverage for:
J2101.
postscript
, or
png (smaller)
J1642.
postscript
, or
png (smaller)
J2253.
postscript
, or
png (smaller)
J1751.
postscript
, or
png (smaller)
J1825.
postscript
, or
png (smaller)
Comments.
Crude map of J2101 from the pipeline
.
Crude map of J1642 from the pipeline
.
Crude map of J2253 from the pipeline
.
Crude map of J1751 from the pipeline
.
Crude map of J1825 from the pipeline
.
Comments.
Due to very sparse u,v coverage, J2253 and J1751 are not visible in these automatically generated maps.